Adapter to use the Servlet interface with the generic DispatcherServlet.
Calls the Servlet's service method to handle a request.

Last-modified checking is not explicitly supported: This is typically
handled by the Servlet implementation itself (usually deriving from
the HttpServlet base class).

This adapter is not activated by default; it needs to be defined as a
bean in the DispatcherServlet context. It will automatically apply to
mapped handler beans that implement the Servlet interface then.

Note that Servlet instances defined as bean will not receive initialization
and destruction callbacks, unless a special post-processor such as
SimpleServletPostProcessor is defined in the DispatcherServlet context.

SimpleServletHandlerAdapter

supports

Given a handler instance, return whether or not this HandlerAdapter can
support it. Typical HandlerAdapters will base the decision on the handler
type. HandlerAdapters will usually only support one handler type each.